Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Polymer Classification: Stereospecificity01:26

Polymer Classification: Stereospecificity

2.7K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
2.7K
Polymer Classification: Architecture01:14

Polymer Classification: Architecture

3.1K
Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
3.1K
Characteristics and Nomenclature of Homopolymers01:00

Characteristics and Nomenclature of Homopolymers

3.3K
Polymers that are made up of identical monomer units are called homopolymers. Only one repeating unit is involved in the construction of the homopolymer structure. For example, as depicted in Figure 1, polypropylene is a homopolymer constituted of propylene monomers. Here, the only repeating unit in the polymer chain is propylene.
3.3K
Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

2.7K
Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
2.7K
Polymer Classification: Crystallinity01:21

Polymer Classification: Crystallinity

3.2K
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
3.2K
Polymers: Molecular Weight Distribution01:10

Polymers: Molecular Weight Distribution

3.8K
For any given polymer, the weight average molecular weight (Mw) is higher than, if not equal to, the number average molecular weight (Mn). The only situation in which the weight average molecular weight and the number average molecular weight are equal is when a polymer consists only of chains with equal molecular weight. However, this never happens in a synthetic polymer, since it is difficult to control the polymerization process up to a molecular level with accuracy to a hundred percent.
3.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Shape-dependent disassembly of polygonal microparticles in two dimensions.

Soft matter·2026
Same author

Molecular Surface Chemistry Drives Anomalous Clustering of Ultrasmall Silica Nanoparticles.

The journal of physical chemistry letters·2026
Same author

Topological Effects of Bottlebrush Copolymer on Their Assembly at the Water/Air Interface.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

Interparticle Interactions of Dendrimer, Comb, and Linear Grafted Nanoparticles via Coarse-Grained Molecular Dynamics Simulations.

Macromolecules·2026
Same author

Microstructure Control of Polymer Films via Air-Assisted Electrospray for Binderless Electrodes.

ACS applied polymer materials·2026
Same author

Circularity in Sequence-Controlled Copolyamides Enabled by Regioselective Enzymatic Hydrolysis.

Journal of the American Chemical Society·2026

Related Experiment Video

Updated: Sep 23, 2025

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.0K

Topologically Precise and Discrete Bottlebrush Polymers: Synthesis, Characterization, and Structure-Property

Nduka D Ogbonna1, Michael Dearman1, Cheng-Ta Cho1

  • 1Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States.

JACS Au
|May 13, 2022
PubMed
Summary

Researchers synthesized precisely structured bottlebrush polymers, enabling control over properties by tailoring side-chain sequences. This breakthrough enhances understanding of polymer structure-property relationships.

More Related Videos

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
09:22

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

Published on: February 7, 2017

7.9K
Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions
06:56

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

Published on: October 10, 2013

39.9K

Related Experiment Videos

Last Updated: Sep 23, 2025

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.0K
Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
09:22

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

Published on: February 7, 2017

7.9K
Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions
06:56

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

Published on: October 10, 2013

39.9K

Area of Science:

  • Polymer Chemistry
  • Materials Science

Background:

  • Understanding polymer structure-property relationships is challenging due to increasing molecular complexity.
  • Precisely controlling polymer architecture is crucial for advanced material design.

Purpose of the Study:

  • To develop a versatile strategy for synthesizing topologically precise and fully discrete bottlebrush polymers.
  • To investigate the impact of discrete side-chain topology on polymer macroscopic properties.

Main Methods:

  • Synthesis of discrete macromonomer libraries.
  • Polymerization into topologically precise bottlebrushes with controlled architectures.
  • Characterization of polymer properties including packing efficiency, phase behavior, and glass transition temperature.

Main Results:

  • Achieved synthesis of discrete bottlebrush polymers with a dispersity (Đ) of 1.0.
  • Observed increased packing efficiency and distinct three-phase Langmuir-Blodgett isotherms with increasing discreteness.
  • Demonstrated that the glass transition temperature is responsive to side-chain sequence.

Conclusions:

  • The developed strategy provides access to a range of precision bottlebrush polymers.
  • Side-chain topology significantly influences macroscopic polymer properties.
  • Precise control over side chains offers a method for tailoring polymer properties without altering chemical composition.